Movement Disorders USMLE Step 1 Practice Question
A 42-year-old woman presents with involuntary jerking movements of her arms and legs that worsen with stress and improve during sleep. Family history is significant for similar symptoms in her mother and maternal grandfather. Genetic testing reveals an expanded CAG repeat. Which of the following is the most likely diagnosis?
Answer choices
- AChorea gravidarum
- BHuntington diseaseCorrect answer
- CEssential tremor
- DSydenham chorea
- ETardive dyskinesia
- FDentatorubral-pallidoluysian atrophy
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